In this paper a new bucket configuration for a Savonius wind generator is proposed. Numerical analyses are performed to estimate the performances of the proposed configuration by means of the commercial code COMSOL Multiphysicsr with respect to Savonius wind turbine with overlap only. Parametric analyses are performed, for a fixed overlap ratio, by varying the slot position; the results show th...

The Savonius wind turbine is a type of vertical axis wind turbine (VAWTs) that is simply composed of two or three arc-type blades which can generate power even under poor wind conditions. A modified Savonius wind turbine with novel blade shapes is introduced with the aim of increasing the power coefficient of the turbine. The effect of blade fullness, which is a main shape parameter of the blad...

This paper provides a computational analysis of wind impact on different geometric configurations of Savonius turbines proposed and previously studied in specialized literature. As a result of comparative analysis of turbines, we performed a flow analysis over a microturbine array, proposed a twisted Savonius turbine respecting its original profile, and subjected it to a comparative analysis of...

An experimental study of the performance and optimisation of a prototype novel drag-driven vertical axis tidal stream turbine is presented. The drag turbine has several unique advantages, including simple blade design, deployable in shallow waters and potential denser array spacing. Performance optimisation was conducted in the hydraulics flume at Cardiff University (CU), where the turbine reac...

The renewable energy sources such as wind energy maintain to increase in popularity since they are inexhaustible and pollution-free. The horizontalaxis wind turbine has been the most common type of wind turbines but due to recent increase in popularity of personal green energy solutions, Vertical-Axis Wind Turbines (VAWT) are becoming more common. Besides two mayor rotor types of VAWTs the Darr...

Renewable energy resources need to be explored to maintain and meet energy demand and replace the slowly depleting fossil fuels.  Malaysia, surrounded by sea with long coastlines, is poised to exploit the potential of this energy. This research work aims at designing a suitable device to extract energy from Malaysian sea current.  Malaysia’s ocean has a low current velocity averaging 0.56 m/s, ...

The Ocean has provided a new avenue in the quest for renewable energy. One potentialsource of energy is marine current, which is harnessed using either vertical or horizontal axis turbines.This paper describes a particular type of vertical axis turbine which is suitable for low current velocityapplications. The simulation of Savonius-type turbine, which hitherto has never been proposed formarin...

Wind turbine is a technology which converting wind energy to electric power. Wind energy is easily accessible anywhere in the world and is one of renewable energy. However, in Kuala Terengganu, the lower average wind speed become one of the factors wind turbine has not been used widely as alternative method for generating the electric power. Thereby, small scale wind turbine which can generate ...


 Pemanfaatanangin/bayu digunakansebagaipenggerakkincirdalammembuatenergilistriklebihdahuludiubah ke dalam energi mekanik putaran kemudian sebagai pembangkit listrik untuk menggerakkan generator. Untuk keperluan tersebut dibutuhkan kincir yang dapat menangkap angin dan diharapkan mempunyai efiensi besar, sehingga hambatan ditimbulkan ditekan sekecil mungkin. Oleh karena itu pada penelitian...